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| Registros recuperados: 36 | |
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| Bitto,I.I; Egbunike,G. N; Akusu,M. O. |
| As ambient temperature and humidity are high all year round within clearly defined dry and rainy seasons in our humid tropical environment, we evaluated the effects of season on the histometric characteristics of the reproductive organs of pubertal West African dwarf bucks using 8 healthy animals. There were no significant differences (p>0.05) between the rainy and dry seasons in the basement membrane of the testes, seminiferous tubular diameter, and round spermatid nuclear diameter. There were also similarities (p>0.05) between the seasons in epididymal luminal diameters, epididymal epithelial heights as well as in Leydig/sertoli cell ratio and sertoli cell Índex. Quadratic regression analyses showed that all the histometric characteristics of the... |
| Tipo: Journal article |
Palavras-chave: Goats; Testes; Histometric; Seasons; Tropics; Farmers. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200024 |
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| Naranjo, Ch.; Tapia, M.E.. |
| In 2011, in the Bay of Manta was presented a high diversity of phytoplankton species, determining a total of 75 species, 29 groups for the zooplankton, which were identified to species level the Phylum Chaetognatha identified 6 species and Cladocera with 2 species. The seasonal time during 2011, did not influence the average abundances of the dominant species of phytoplankton and zooplankton, using the student T Test statistic with 95% confidence However specific tests were performed between different stations have a greater diversity of species and stations with less diversity, showing a significant difference in the mean of the population of phytoplankton. The oceanographic conditions recorded in the Equatorial Pacific states mainly cooling during... |
| Tipo: Journal Contribution |
Palavras-chave: Variability; Plankton; Chlorophylls; Biomass; Species diversity; Seasons. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5760 |
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| Gualancañay, E.. |
| During the rainy season of the ecuadorian coast (march 2012) in the study area including two environmental: Marine area and estuarine area. Were identified in Caraquez Bay the following species of benthic foraminifera: Bulimina pulchella, Cibicidea aknerianus, C. bertheloti, F. boueana, Elphidium articulatum, F. typical, Nonion pizarrense, Quinqueloculina lamarckiana, Rotalia beccarii, Triloculina globulosa, y Uvigerina incilis. These species correspond to the Pananmian zoogeographic province proposed by Boltovskoy (1965) and confirmed by Boltovskoy and Gualancañay (1975, 1986). |
| Tipo: Journal Contribution |
Palavras-chave: Foraminifera; Biogeography; Rain; Seasons; Environments. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5753 |
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| Villamar, F.. |
| As a result of taxonomic analysis and the abundance of benthic polychaetes abtained from the subtidal area in five profiles with 15 stations at depths between 3 and 23 m. in Manta Bay, eight species were identified in march, the most abundant one being Cossura brunnea of the Cossuridae family. Eight species were identified in august, represented by the most abundant species, Paraonis gracilis from the Paraonidae family. For the intertidal zone, five profiles in five different areas were analyzed, using techniques recommended by Roger J. Lincoln & Gordon Sheals (1979). Two species were identified in march and four in august, with the most frquent and abundant species being Anaitides madeirensis of the Phyllodocidae family in both seasons of the year.... |
| Tipo: Journal Contribution |
Palavras-chave: Benthos; Taxonomy; Species diversity; Seasons; Environmental factors. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5756 |
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| Registros recuperados: 36 | |
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